On Monday, the Sausage Party star stopped by Howard Stern's SiriusXM radio show to revisit their famous feud.

He said on The Howard Stern Show that, because of the movie's success, he thought Miz Heigl's diss was actually personal, saying:

"I thought she hated us. We made a movie. I was very proud of it. It was critically very well-received. Financially it was probably still my most successful movie, I think. And then we just heard that she didn't like it, and that it seemed like she didn't have a good experience making it, and that she didn't feel as though the product was reflective of how she thought she should be portrayed."

"When that happened, as someone who's an egomaniac, I just get hurt by that. And I just thought, 'Oh, she must f*cking hate me.'"

To this day, the 34-year-old still doesn't understand what prompted Katherine's rant:

"I would actually get it if it was one of those movies that made a lot of money, but the consensus was 'F*ck this movie. It's garbage. It wasn't thought through. It is sexist.' But that just wasn't the consensus on the movie."

The Canada native even admitted that — while they were filming the romantic comedy — that he felt they could be "whatever the sh*tty version of Tom Hanks and Meg Ryan is," adding:

"As I was making the movie, I was like 'I would make a dozen movies with her.'"

But, when she went public with her criticism, the Neighbors alum was totally blindsided:

"We were funny together. I was having a really good time, and then when I heard afterward that she didn't like it, that she seemed to not like the process, and she did not like the end product either, I think when that happens — also your trust feels somewhat betrayed."

And even after all that bad blood, Mr. Rogen does feel bad that the 37-year-old's diss negatively affected her reputation in the industry, as well as her public perception:

"I respect the fact that perhaps she realizes that it has hurt her career, and I don't want that to have happened to her at all because I've said a thousand stupid things and I really like her. The only people who in this situation should in any way take anything from it is me and Judd because we're the ones she was talking about. For other people to not work with her because she didn't like her experience with us is — I think is crazy."

While it seems like Seth is completely burying the hatchet, he did confess that he STILL hasn't received a direct apology from his former costar… even after she told Howard that she wanted to say she was sorry earlier this year:

"I saw Judd after this, and the conversation we had was like, 'Yes, it's great. It's wonderful that she was apologizing.' And he was like, 'Has she called you?' And I was like, 'No, has she called you?' He was like, 'No!'"

In fact, the funny man even threw some shade Katherine's way, saying:

"When I apologize to people, generally I don't take a public forum to do it. I actually usually do the exact opposite. I want as few people as humanly possible to know I'm apologizing to someone."

Zayn previewed the duet by posting a black and white pic of himself with Swifty on his Instagram -- but hey, she is bestiez with his girlfriend Gigi Hadid, so it wouldn't be unusual that they hang out... But collab?!